Rios v. United States

An indictment filed in the United States District Court for the Southern District of California charged the petitioner with unlawful receipt and concealment of narcotics in violation of 21 U. S. C. § 174. Before trial the petitioner made a motion to suppress for use as evidence a package of heroin which, so a California court had found, Los Angeles police officers had obtained from the petitioner in an unconstitutional search and seizure. After a hearing the District Court denied the motion to suppress, finding that federal agents had not participated in the search, and finding also that the…